Inventor · disambiguated record
Mao-Chi Cheng
Also filed as: CHENG MAO-CHI
1 granted patent·2 pending applications·3 citations·filing 2005–2015
20Inventor score
Top patents by PatentIndex Score
3 records- 0150US9968230B2Seat-type air extracting suction apparatus to aid bowel movementCHIN CHANG TRADING COMPANY·Filed 2013·Granted May 15, 2018·3 cites·18 claims
- 0231US2006230510A1Non-invasive excrement expelling auxiliary deviceCHENG MAO-CHI·Filed 2005·Application pending·0 cites
- 0316US2017095386A1Portable defecation assistive equipmentCHIN CHANG TRADING COMPANY·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →